172417260 has 24 divisors (see below), whose sum is σ = 482768496. Its totient is φ = 45977920.

The previous prime is 172417249. The next prime is 172417261. The reversal of 172417260 is 62714271.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (172417261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1436751 + ... + 1436870.

It is an arithmetic number, because the mean of its divisors is an integer number (20115354).

Almost surely, 2^172417260 is an apocalyptic number.

172417260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172417260 is an abundant number, since it is smaller than the sum of its proper divisors (310351236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172417260 is a wasteful number, since it uses less digits than its factorization.

172417260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873633 (or 2873631 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 172417260 is about 13130.7753007962. The cubic root of 172417260 is about 556.5791241653.

The spelling of 172417260 in words is "one hundred seventy-two million, four hundred seventeen thousand, two hundred sixty".